Join Date: Sep 2015
Location: Lower Saxony, Germany
We did not change the inlet. It is not necessary at all. The limitations are within the software and not within the hardware! The new downpipe and the moved cat to the end of the exhaust system is just because of durability reasons (exhaust temperatures). The stock map sensor cannot handle the boost we are using, so we needed to change it. But even this part has its limits. If we want to go to the top we need a third option, which is available. We dont need it because we cant operate the rest of the hardware with more power and more torque without having a high risk of damaging it in a long term perspective.
Turbo reliability is not an issue on the 4C so far. There are for sure differences between a K04 charger for VW and Alfa. But most important is, that we have three cars, that we drove for over 90.000 Km in total and about 10.000 Km on the racetrack with no damage at all. The new tune now has done about 500 Autobahnkilometers and about 500 Trackkilometers as well. Because of the winter, we were not able to do any more testing so far. But we will continue as soon as possible. We will not sell anything before we dont managed to do a 1000 Track-Kilometers without a problem even though all engine-data from the development on the rolling-road show that there is no problem to be expected.
It took us quite some time and a huge amount of money to find out everything about the ECU and to get a 100% access. If you dont know the right people and you dont want to make a complete development like a OEM normally does there is probably no way you will get the same results by yourself.
What do the extra cc´s do for you if the engine can measure its performance output and limits it? Injectors will not be able to deliver enough fuel over 2,15 bars!
We are not aiming for higher power, so the pistons should be fine according to what you wrote. :-)
Last edited by 4CRacer; 01-19-2017 at 10:39 AM.